我需要开始说类似问题中提供的解决方案似乎都不适合我。
我有两个模型
class Building(models.Model):
(...)
address = models.ForeignKey('common.Address', null=True)
class Address (models.Model):
(...)
latlng = models.PointField(null=True)
我正在使用 Django REST Framework(带有附加的 GIS 扩展)序列化程序来序列化这些模型:
class BuildingSerializer(serializers.ModelSerializer):
class Meta:
model = Building
class AddressSerializer(serializers.GeoModelSerializer):
class Meta:
model = Address
使用默认序列化程序,我得到的 JSON 如下所示:
results": [
{
(...)
"address": 1
}
]
所需的 JSON 如下所示:
results": [
{
(...)
"address": 1,
"latlng": {
"type": "Point",
"coordinates": [
11.0,
11.0
]
},
},
]
其中 latlng 是地址字段,哪个建筑物只能有一个。
使用这个http://www.django-rest-framework.org/api-guide/serializers/#dealing-with-nested-objects抛出和错误:
Got AttributeError when attempting to get a value for field `latlng` on serializer `BuildingSerializer`.
The serializer field might be named incorrectly and not match any attribute or key on the `Building` instance.
Original exception text was: 'Building' object has no attribute 'latlng'.